[When Lotor puts it that way, Mettaton sees that they might very well be here to engage with that creature somehow. If it's responsible for wiping out the crew, leaving only Violet as far as they can tell, well... Maybe the point is to do something about the monster, for Violet's sake, if not the vanished crew. His displeasure becomes more prominent.]

I'm thrilled to be here, then. Without any useful combat capabilities. Can't we simply rescue Violet and take her back to the temple? [Something nags at Mettaton's mind, like the sound of the screams he heard before he shorted out. He shifts, visibly uncomfortable, and sighs.] ... Ah. Or maybe getting rid of the monster isn't only for Violet's sake...